* {
    margin: 0;
    padding: 0;
    font-family: "微软雅黑";
    font-size: 12px;
}

.box {
    width: 390px;
    height: 360px;
    border: solid 1px #ddd;
    background: #FFF;
    position: absolute;
    left: 50%;
    top: 42%;
    margin-left: -195px;
    margin-top: -160px;
}

.box h2 {
    font-weight: normal;
    color: #666;
    font-size: 16px;
    line-height: 46px;
    height: 46px;
    overflow: hidden;
    text-align: center;
    border-bottom: solid 1px #ddd;
    background: #f7f7f7;
}

.input_box {
    width: 350px;
    padding-bottom: 15px;
    margin: 0 auto;
    overflow: hidden;
}

.input_box input {
    float: left;
    width: 348px;
    height: 40px;
    font-size: 14px;
    border: solid 1px #ddd;
    text-indent: 10px;
    outline: none;
    line-height: 40px;
}

.input_box button {
    width: 350px;
    height: 48px;
    background: #3f89ec;
    border: none;
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    font-size: 16px;
    color: #FFF;
}

#error_box {
    height: 40px;
    width: 350px;
    margin: 0 auto;
    line-height: 40px;
    color: #fc4343;
}

img {
    height: 40px;
    width: 100px;
}